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发明名称
Piston ring
摘要
申请公布号
US1956513(A)
申请公布日期
1934.04.24
申请号
US19330683696
申请日期
1933.08.04
申请人
NEAULT GROVER C;WOLD CHRIST O
发明人
NEAULT GROVER C.;WOLD CHRIST O.
分类号
F16J9/24
主分类号
F16J9/24
代理机构
代理人
主权项
地址
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